The king of fans has released its own fan hub that can control eight fans via one motherboard header and includes overcurrent protection for peace of mind.
Noctua NA-FH1 PWM fan hub
Noctua NA-FH1 Review
Noctua presents NA-FH1 eight channel PWM fan hub
NA-FH1
NA-FH1
Fan hub short-circuit test (Noctua NA-FH1 vs. unprotected fan hub)
Noctua NA-FH1 Review
Noctua Na-fh1 Fan Hub 8-port Pwm Fan Hub - Pc Components Cooling & Tools - AliExpress
PinkleHub, Noctua NA-FH1 FAN HUB